Fine-tuning of the universe: the fundamental physical constants of the universe (e.g., strength of the gravitational constant, strength of the strong nuclear force, etc.) and the ratio of their strengths relative to one another appear to be precisely tuned in order to allow life as we know it, and the probability of this happening by chance is incredibly unlikely. Therefore, it seems plausible that our life-permitting universe had a Designer. However, this argument assumes that the constants could theoretically assume any arbitrary value and that those values would all be equally likely in a multiverse scenario. But because we do not have other universes to compare ours to, we do not know whether the values for constants we see are likely or unlikely. In addition, life evolves to fit the constraints that the universe enforces. If the fundamental properties of the universe were different, it seems to me that life still may have emerged but simply would be in a different form.
